Assigning values from data frame to vector in R

Question

I have a data frame as below:

data <- data.frame(name = c("a", "b"),
                   value = c("apple", "ball"))

Now from this data I want to create a vector as follows:

transformed_data <- c( a = "apple", b = "ball")

How this is possible to do in R?

You want the `transformed_data` to be a numeric vector? You can just do that by extracting the `value` column and assigning it the `names` of `name`. — slowowl, Feb 09 '22 at 06:47

score 3 · Answer 1 · answered Feb 09 '22 at 08:22

3

Since you're tagging tidyverse in the question, you can use deframe from the tibble package:

tibble::deframe(data)

      a       b 
"apple"  "ball"

answered Feb 09 '22 at 08:22

Stefano Barbi

score 2 · Accepted Answer · answered Feb 09 '22 at 06:55

2

There's a tidyverse approach given in the comment, so I'll include a base R approach here:

setNames(data[["value"]], data[["name"]])

      a       b 
"apple"  "ball"

answered Feb 09 '22 at 06:55

benson23

2

Code golf :-) `do.call(setNames, unname(data[2:1]))` – r2evans Feb 09 '22 at 07:16

2 Answers2